Edge setting and burnishing tool.



F J. GROSS.

EDGE SETTING AND BURNISHING TOOL. APPLICATION FILED 0c.21.1915.

1,179,424. Patented Apr. 18,1916.

4% I TQ- 45 flaky ATFEIRNEYE THE COLUMBIA PLANOGIIAPH CO" WASHINGTON. D. C.

FREDERICK J. GROSS,

OF AUBURN, MAINE.

EDGE SETTING AND BURNISHING TOOL.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed December 27, 1915. Serial No. 68,622.

To all whom it may concern:

Be it known that I, FREDERICK J. GRoss, a citizen ofthe United States, residing at Auburn, in the county of Androscoggin and State of Maine, have invented new and useful Improvements in Edge Setting and Burnishing Tools, of which the following is a specification.

This invention relates to rotary tools for setting or burnishing edges of parts of boots and shoes, such as sole and heel edges, the tool having a circular burnishing face, which is normally concentric with the axis of the tool, its periphery being formed by members which are adapted to yield independently toward said axis. A tool of this character is usually heated and supplied with burnishing wax, so that a luster is imparted to an edge pressed against the tool while it is rapidly rotated.

The invention has for its object to provide a simple and durable tool of the general character above indicated, adapted particularly to set and burnish the edges of rubber soles and heels, although not necessarily limited to use on edges of this material.

The invention is embodied in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings forming a part of this specification: Figure 1 represents a side elevation of a tool embodying my invention, adapted for use on sole edges Fig. 2 represents a section on line 2-2 of Fig. 1; Fig. 3 represents a section on l ne 3-3 of Fig. 2; Fig. 4 represents a sect1on on line 44 of Fig. 2; Fig. 5 represents an enlarged perspective view of one of the burnishing members shown by the preceding figures; Fig. 6 represents a fragmentary sectional view showing a tool adapted for use on heel edges.

The same reference characters indicate the same or similar parts in all the views.

In the drawings, 12 represents a rotary body, preferably of the form and construction shown by Figs. 1 and 2, the body being elongated and having a socket at one end adapted to be secured by one or more set screws 14 to one end of a driving shaft, the tool and shaft being coaxial. To the outer end of the body are rigidly attached elongated resilient burnishing members 15, each of which is preferably a rod of steel or other suitable metal, one end of which is driven tightly into a socket formed for its reception in the outer end portion ofthe body. The members extend longitudinally of the body and substantially parallel with the axis thereof, and are grouped in a circular series to collectively form a circular sectional burnishing face surrounding said axis and normally concentric therewith. The outer end portions-of the members 15 are free to move independently toward the axis of the tool, and are normally maintained substantially equidistant from said axis by their own resilience, so that the circular sectional burnishing face formed by the members is normally maintained at itsmaximum diameter. The outer side of each member is preferably provided with a side portion '15 which is sub stantially a segment of the circular sectional burnishing face formed by the series of members, as shown by Fig. 4:, said side portion being preferably formed by cutting away a part of the periphery of as indicated by Fig. 5.

The body 12'is provided with an extension l2 which is located within and spaced from the inner surfaces of the members 15 to permit said members to yield inwardly.

When the tool is adapted to act on sole edges the outer end of each member 15 is provided with a welt burnishing lip 17 and the chief function of the extension 12 is to support a discoidal guard 18, attached by a. screw 19 to the outer end of the extension. Said guard has an annular burnishing face 20 overhanging the outer ends of the members 15 and surrounding the lips 17 thereof, said face forming a continuation of the burnishing faces of the lips.

The tool may be heated by a gas flame projected against the members 15 at a suitable distance from their outer ends. Burnishing wax rendered suitably fluid by heat may be supplied to the acting portions of the members 15 by any suitable means.

I have found that the described tool is very effective in burnishing the edges of rubber soles, and is also useful in burnishing leather edges.

Fig. 6 shows a tool adapted to act on heel edges, smaller rand-burnishing lips or beads 17 being substituted, if desired, for the the member,

welt burnishing lips 17, and the diameter of y of the body extension 12 is to limit the in- 11 Ward flexure of the burnishing members.

To decrease the weight of the body said extension may be tubular, as shown.

The members 15 are preferably so arranged that their longitudinal axes are somewhat oblique to the axis of the tool, as indicated by Fig. 1. This arrangement facilitates the burnishing operation.

Having described my invention, I claim:

1. A burnishing tool comprising a rotary body, and a plurality of resilient burnishing members, each attached at one end to said body, said members extending substantially parallel With the axis of said body in a circular series surrounding said axis, and collectively forming a substantially circular sectional burnishing face normally maintained at its maximum diameter by the resilience of the members, each member being adapted to yield independently toward said axis.

2. A burnishing tool comprising a rotary body, and a series of resilient independently yielding burnishing members, each attached at one end to said body, each member having a reduced outer side portion Which is a segment of a substantially circular sectional burnishing face formed by the series of members.

3. A burnishing tool comprising a rotary body, a plurality of resilient burnishing members, each attached atone end to said body, said members extending substantially parallel With the axis of said body in a circular series surrounding said axis, and collectively forming a substantially circular sectional burnishing face normally maintained at its maximum diameter by the resilence of the members, each member being adapted to yield independently toward said axis, and a body extension Within the said series and spaced from the inner surfaces of the members thereof.

4. A burnishing tool comprising a rotary body, and a plurality of resilient burnishing members, each attached at one end to said body, said members extending substantially parallel With the axis of said body in a circular series surrounding said axis, and collectively forming a substantially circular sectional burnishing face, each member hav-- ing a Welt burnishing lip at its outer end, a body extension Within the said series and spaced from the inner surfaces of the members thereof, and a discoidal guard attached to. said extension and having an annular burnishing face overhanging the outer ends of said members and surrounding the series of Welt-burnishing lips thereon.

In testimony whereof I have affixed my signature.

FREDERICK J. GROSS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

